Rotary cutter.



No. 891 "2. PATENTED JUNE 16, 1908. W. O. EVANS & E. H. TAYLOR.

ROTARY CUTTER.

APPLICATION FILED MAR. 27, 1905.

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fnvenona: MW SW'MA cflborney UNITED sTATEs PATENT OFFICE.

WARREN O. EVANS, OF EXETERLNEW HAMPSHIRE, AND EUGENE H. TAYLOR, OF LYNN,

MASSACHUSETTS, ASSIGNORS TO THE AUTOMATIC HEEL-TRIMMING AND BURNISHINGMACHINE COMPANY, OF EXETER, NEW HAMPSHIRE, AJCORPORATION OF MAINE.

ROTARY CUTTER.

Specification of Letters Patent.

Patented June 1c, 1908.

Application filed March.27, 1906. Serial No. 252,198.

To all whom it may concern: v

Be it known'that we, WARREN O. EvANs and EUGENE H. TAYLOR, citizens ofthe A United States, residing at Exeter, in the county of Rockingham,State of New Hampshire, andat Lynn, in the county of Essex and State ofMassachusetts, have, invented a certain new and useful Improvement inR0- tary Cutters, of which the following is a specification, referencebeing had therein to the accompanying drawings.

The invention relates to a rotary cutter' which has been designed moreespecially for edge trimming in connection with boots and shoes, in themanufacture of the latter, but the invention is adapted to be embodiedin similar cutters employed for other uses.

- The invention is illustrated in the accompanying drawings, in whichlatter,

Figure 1 is a,view in elevation of a cutter embodying the invention.Fig. 2'is a view of the said cutter, mainly in section in a centralplane extending longitudinally of the cutter-shaft. I

Having reference tothe drawings,-1 designates the cutter-carryingtool-shaft, and 2 is a portion of the bearing for the said shaft.

3 and 31 are heads which are applied to the end of said tool-shaftprojecting beyond the said bearing, and 4,4, 4, are the cutter 1 bladesmounted between the said heads.

The cutter-carrying tool-shaft 1 .is formed with the taperedbearing-portion 100 fitting the correspondingly tapered end-portion .oftheinterior of the bearing 2. The extremity of the tool-shaft rojectingbeyond the said bearing is screw-t 'readed as at 101 and 102, the inner(101) of these two threadedportions being slightly larger in diameterthan the outer (102). The two heads 3 and31 of the cutter are grooved:to receive the o posite edges-of the cutter-blades, in-usual ashion, andare clamped against said edges to hold the blades in place, asordinarily- Q In conformity wlth the invention, we render the.cutter-head adjustable u on the shaftl in the direction of the lengt ofthe latter by the construction which we will now describe. The central 0ening or eye of the inner head 3 is threade to fit the threaded portion101 of the shaft 1, and after having the sai wise between'the saidheads, and a jam-nut the two heads.

been,turned upon the latter until it has been blades 4, 4,4, betweenitself and-the inner head 3.

The advantages of the foregoing are the simplicity and strength of theconstruction and the convenience with which the cutterhead may beadjusted upon the shaft 1 in a direction lengthwise of the'latter.

Weclaim as our invention:-

1. In combination, a screwethreade'd cylindrical carrier, acentrally-threaded head adjustable upon the threaded portion of saidcarrier, a jam-nut lockin the said head in adjusted osition, a movailehead splined to carrier, cutter-blades seated edgeacting upon themovable head to clamp the blades between the'latter and therelativelyfiXed head.

2. In combination, a screw-threaded c lin drical carrier, acentrally-threaded cadscrewed thereon and adjustable to fix the positionof the cutter on the carrier, means or seiparately locking the said headin ad- 'uste position, a movable head, cutterlades seated edgewisebetween the said heads, and a jam-nut locking the latter head andclamping the said cutter-blades between In testimony whereof we afiixour signatures, in presence of witnesses. i v WARREN C. EVANS.

EUGENE H. TAYLOR.

Witnesses to si%iature of Warren G. Evansi CHARLES .BYINGT'ON, DA IELGILMAN.

' Witnesses to signature of Eugene H.

Taylor:

D NIEL GILMAN,

GHAs. F. RANDALL.

